Improved ore and bone-crusher



A. NEWELL.

Ore and Bone Mill.

No. 81,932. `Patented Sept. 8, 1868.

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@with gisten @anni @ffice AMOS N EWELL, OF REDWING, MINNESOTA, ASSIGNOR TO HIMSELF, HENRY S. BROWN, FREDERlCK ARNOLD, AND ALFRED ARNOLD.

Letters Patent No. 81,932, dated September 8, 1868.

IMPROVBD ORE AND BONE-CRUSHER..

TO ALL WHOM IT MAY CONOERN: l

Be it known that I, AMos NEWELL, of Redwing, county of Goodhue, and State of Minnesota, haveinve'nted an Improvement in Ore and Bone-Crushers? and I do hereb'y declare that the following is afull and exactv description thereof, reference being had to the accompanying drawings, and to the letters ot' reference marked thereon. Y 4 i My invention relates to that class of ore and bonecrushers wherein the material is crushed by revolvingA hammers driven with great velocity inside a stationary case. i

My invention consists, first, in the employment of two sets of the said revolving hammers, Amade to revolve in opposite directions, whereby 'far less velocity is required to produce thesame percussion; second, in the geni eral construction and arrangement of the stationary case for its adaptation to the said two sets of hammers, and for the convenient feed and discharge of the mill.

Figure 1 in the drawing is a vertical section through the line a a in Figure 2, and shows the plan-of the disk'E, to which the hammers gare attached.

Figure 2 is a vertical section through the line b b in iig. 1.

A is the stationary case. That portion above the centres of the shafts D D is a square bo'x open at the top, and that below the shafts is semicircular. Its periphery, j, is perforated, as sho-wn.

Firmly attached to and revolving iii-opposite directions with the shafts are *the disks E E, provided with angesj'fff, `to which the hammers g g'g g are bolted.

71. h are the driving-pulleys; iz'z'z', the boxes or bearings in which the shafts revolve. Two of these bearings are affixed to the case A, as shown. v

A strong frame, not shown, is so constructed as only to admit the four bearings t' z' z' z' to rest on it and thus support the entire mill thereon, leaving a sufficient space underneath the case for the free discharge of the crushed material and itsaccumulation below the mill.

The exact distance that the edges of the hammerson one of the disks should be from those on the other` disk must depend on the kind and size of material, to be crushed, and the space between the two sets ofhammers may .be changed, as occasion may require, byichanging the Widths of the hammers, or otherwise-making the 4said space adjustable.

The size of the perforations inj determine the tineness that the material will be crushed.

' In the operation of my improved Crusher, the ore or bone is thrown into the top of the case A., passes down between the disks E E, receives the percussion of the hammers g-ggg, and is crushed thereby, and then discharged through the perforations in j.

What I claim as my invention, and desire to secure by Letters Patent, is.-

Two distinct sets of hammers, so made andarranged as to revolve in opposite directions, adapted to and in combination with the case A, substantially as and for the purpose described.

'l AMOS NEWELL.

Witnesses:

HENRY STANTON, ALFRED ARNOLD. 

